Length measuring apparatus



FIG. 1 is a perspective view of a length measuring apparatus;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof, shown in a state of use.

The broken lines depict portions of the length measuring apparatus that form no part of the claimed design. 

CLAIM The ornamental design for a length measuring apparatus, as shown and described. 